A SUMMARY OF DATA REFLECTIVE OF US PULP AND PAPER-INDUSTRY PROGRESS IN REDUCING THE TCDD TCDF CONTENT OF EFFLUENTS, PULPS AND WASTE-WATER TREATMENT SLUDGES/

This paper summarizes the data from an update to the original study wh ich quantified releases from pulp bleaching at U. S. Mills in 1988. As of the end of 1994, industry export vector TCDD/TCDF contents have be en reduced by over ninety percent on a TEQ basis from the 1988 level. Only a small percentage of mills are characterized by effluent concent rations above the nominal detection limit for TCDD, In sludges, most m ills are characterized by TCDD concentrations less than 10 ppt. The ne w data show that approximately 90% of currently produced pulps have le ss than 2 ppt TCDD.